The woman can be heard yelling, “Do something!” repeatedly at the man and telling another passenger on the bus that “he’s acting crazy.”

He then stands up and swings his backpack at the woman, at which point a group of women jump in and started swinging and kicking at the man, the video shows.

The man fought back and threw punches at the women in the chaotic scene while a woman can be heard screaming, “Give me that knife! Give me that knife!” While the women are exiting the bus, the man grabs one by the hair and yanks her backward just before the video cuts off.

It remains unclear where and when the video was taken. The website claims the incident took place in Brooklyn.